The Bruins took a 2-1 lead 4:47 into the second period on Kessel's one-timer off Savard's pass from the corner.

Kessel struck again on a power play with 6:38 left in the period. After the Senators failed to clear a loose puck in front of Gerber, Kessel converted from a pile of players in front of the goal.

Alfredsson, playing his second game since returning from knee surgery last week, cut it to 3-2 on a power play with 4:20 left in the period. Alfredsson took a wrist shot that went over Fernandez's glove and into the top corner.

Lucic completed the scoring with 5:16 left in the third.

Notes: Kessel hasn't missed a game since Jan. 9, 2007, when he returned from testicular cancer surgery, a streak of 129 games ... Senators forward Chris Kelly reached 100 career points with a first-period assist ... With attendance of 19,318, the Senators recorded their 39th straight sellout in regular-season or playoff action at Scotiabank Place.